Here is Rabbi Hoffman's Study Guide, which contains a glossary of familiar or not-so familiar Hebrew words, diagrams, and many other fascinating study tools. This is the "PDF" link on the left that says "2.1 M" next to it.
The smaller file is the book of Dialectic Triangles, in which the Rabbi illustrates numerous Hebrew words that have 3 meanings - creating dialectic triangles which teach principles of Judaic philosophy. This is the link on the left that says: "510.4 K."
To access the files, click on "pdf" in the box on the left and they will open in a new browser window. Archive.org will create preview versions in time [maybe...]